Fair Value Measurements (Tables)

3 Months Ended

Jul. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table summarizes the assets and liabilities measured at fair value on a recurring basis:

(Dollars in millions)	Level 1		Level 2		Level 3		Total
April 30, 2013:
Assets:
Currency derivatives	$	—	$	5	$	—	$	5
Liabilities:
Currency derivatives	—		4		—		4
Short-term borrowings	—		3		—		3
Current portion of long-term debt	—		2		—		2
Long-term debt	—		1,011		—		1,011
July 31, 2013:
Assets:
Currency derivatives	—		17		—		17
Liabilities:
Short-term borrowings	—		5		—		5
Current portion of long-term debt	—		1		—		1
Long-term debt	—		950		—		950